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Large-scale high-speed rotary equipment defect detection method based on ultrasonic principle

A defect detection, large-scale technology, applied in processing detection response signals, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve low reliability, surface corrosion of rotor components, detection Low efficiency and other problems, to achieve the effect of high degree of automation, elimination of corrosion and pollution, and fast moving speed

Inactive Publication Date: 2021-06-04
HARBIN INST OF TECH
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Problems solved by technology

[0004] The present invention aims to solve the problems of low reliability, low detection efficiency and easy corrosion of the surface of the rotor component obtained by using the traditional ultrasonic method in the existing detection of the surface defect of the rotor component, and further provides a method based on Defect detection method for large-scale high-speed rotary equipment based on ultrasonic principle

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  • Large-scale high-speed rotary equipment defect detection method based on ultrasonic principle

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specific Embodiment approach 1

[0032] DETAILED DESCRIPTION One: Combination Figure 1 ~ 4 In the present embodiment, a large high-speed rotary equipment defect detection method based on ultrasound principles is realized by a defect detecting device, and the defect detecting means comprises a parallel-arranged emitter 1, a receiving wheel 2, and an interior mounted inside. The transmitting transducer 3 is mounted in the receiving transducer 4 in the receiving wheel 2, the axis of the transmitting wheel 1, and the radius of the receiving wheel 2 are arranged in parallel with each other, and the transmitting wheel 1 is rotated by the connecting rod 5;

[0033] The defect detection method includes the following steps:

[0034] Step 1, according to the material characteristics of the rotor member 100, adjust the emission transducer 3, the inclination angle of the transducer 4, and the transmitting transducer 3, the reception transducer 4 is fixed separately after the adjustment is completed;

[0035] Step 2, the coup...

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Abstract

The invention discloses a large-scale high-speed rotary equipment defect detection method based on an ultrasonic principle, and belongs to the technical field of ultrasonic flaw detection. According to the invention, the problems of low reliability of a detection result obtained by adopting a traditional ultrasonic method, low detection efficiency and easy corrosion to the surface of the rotor component in the existing detection of the surface defects of the rotor component are solved. The method is realized by adopting a flaw detection device, the flaw detection device comprises a transmitting wheel, a receiving wheel, a transmitting transducer and a receiving transducer, the transmitting wheel and the receiving wheel are arranged side by side, the transmitting transducer is arranged in the transmitting wheel, the receiving transducer is arranged in the receiving wheel, the axes of the transmitting wheel and the receiving wheel are arranged in parallel, and the transmitting wheel and the receiving wheel are rotationally connected through a connecting rod. According to the measured ultrasonic signals, whether defects exist on the ultrasonic propagation path or not is judged, and the situation that in the prior art, a coupling agent needs to make contact with the surface of a rotor when a traditional ultrasonic method is used is effectively avoided by filling the coupling agent into the transmitting wheel and the receiving wheel.

Description

Technical field [0001] The present invention relates to a large-scale high-speed rotary equipment defect detection method based on ultrasound principle, belonging to the field of ultrasound flaw detection. Background technique [0002] In the aerospace sector, the aviation engine is one of the most important power sources of the aircraft. It is known as "Pearls on Crown", and as its core components, the manufacturing quality of aerospace rotors directly determines the performance and service life of the engine. Because of its complex surface shape, high failure rate and difficulty in processing, it can be said that the key breakthrough points of the entire aero engine technology are carried out around the rotor. During the aerospace engine operation, the rotor is subjected to a thermal impact from a high temperature, high pressure and high-temperature, high-pressure and up to 2000 degrees Celsius, a thermal impact from a high temperature, high pressure, and high-degree of high-te...

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Application Information

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IPC IPC(8): G01N29/07G01N29/265G01N29/44
CPCG01N29/07G01N29/265G01N29/4436G01N2291/2693
Inventor 孙传智刘恩晓谭久彬刘永猛王晓明
Owner HARBIN INST OF TECH
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